摘要
Fe73.5Cu1Nb3Si13.5B9非晶合金薄带在540℃下17.8 MPa拉应力退火后具有宽平台和陡峻下降沿的巨磁阻抗特性,据此研制了一款新型磁敏开关。文中介绍了磁敏材料的GMI特性及磁敏开关的电路设计原理,对磁敏开关的磁场和温度特性进行了测试,结果表明:该磁敏开关的重复性好,迟滞误差小,温漂低。
A new kind of magnetic switch was developed based on Giant Magneto-impedance effect (GMI)of Fe73.sCulNb3Si13.sB9 amorphous ribbon annealed under the stress of 17. 8MPa and at 540 °C, which has wide platform and steep decline of the GMI characteristics. This paper introduces the GMI characteristics of magnetic materials and the circuit principle of magnetic switch. In addition, the magnetic characteristic and temperature characteristic of the magnetic switch has been measured. The results showed that the sensor had good repeatability, almost no hysteresis, low temperature drift.
出处
《传感技术学报》
CAS
CSCD
北大核心
2012年第5期577-580,共4页
Chinese Journal of Sensors and Actuators
基金
国家自然科学基金项目(50871104)
浙江省大学生科技创新活动计划项目(2010R404025)
关键词
磁敏开关
Fe基合金薄带
巨磁阻抗效应
工作点
magnetic switch
Fe-based alloy ribbon
giant magneto-impedance effect
operating point
作者简介
蔡晶(1987-),硕士研究生,现就读于浙江师范大学数理信息工程学院物理电子学专业,主要从事磁敏传感器的研究:
郑金菊(1964-),女,副教授,浙江师范大学物理电子学专业硕士生导师.主要从事电子技术应用、信号处理和磁敏传感器的研究,zjj@zjnu.cn。